package oo.day03;

public class UpDemo {

	public static void main(String[] args) {
		Coo c = new Coo();
		c.c = 5;
		c.say();
		
		Doo d = new Doo();
		d.d = 6;
		d.show();
		
		Coo f = new Doo();
		f.c = 5;
		f.say();
	}
}

class Coo {
	int c;
	void say() {
		
	}
}

class Doo extends Coo{
	int d;
	void show() {
		
	}
}